1.8.7 tweak profiles give very little boost compared to 1.8.6, profiles 1-6 actually reduce h/s from stock
on rig with v56/64 all v64 bios samsung 1100mhz: profile 10 1.8.6=15100h/s, 1.8.7=14700h/s
launching hwinfo when miner works or restarting miner without applying profiles boosts to 15300h/s
daily avg poolside hashrate with static diff is close to 14kh/s on 1.8.6 profile 10(15100h/s) so i assume 1.8.7 numbers are real?
this is related to cn heavy variants